<html xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"> <meta name="Title" content=""> <meta name="Keywords" content=""> <meta name="Generator" content="Microsoft Word 15 (filtered medium)"> <style></style> </head> <body bgcolor="white" lang="EN-GB" link="#0563C1" vlink="#954F72"> <div class="WordSection1"> <o:p> </o:p> <o:p> </o:p> <o:p> </o:p> Hi All I am using the following command to extract video h264 packets from my rtsp stream: gst-launch-1.0 rtspsrc location="rtsp://MY_BIG_BUCK_BUNNY_IPADDRESS/vod/sample.mp4" ! queue ! "application/x-rtp,media=video" ! rtph264depay ! h264parse ! filesink location="test.h264" To test my pipe and the format of the h264 packets I give that file to ffmpeg to create an mp4 : ffmpeg -f h264 -i test.h264 -vcodec copy test.mp4 FFmpg complains trying the above command saying it cant find frames, start codes and eventually bombs out with “Could not write header for output file #0 (incorrect codec parameters ?): Invalid argument” The entire output is below. If I add a matroskamux to the gstreamer pipe I am able to play the output file no probs. Is there something special about the h264 raw output packets generated from the gst-launch command? Looking at the raw h264 output file it looks to me like there are extra bytes of data (maybe 35bytes ?) in front of the first h264 packet. But I could be way off with that. And following packets seem to have an offset counter that’s incrementing (eg 00000001 … 0000008F). <o:p> </o:p> Can anyone out there help me to get the output h264 raw file into a format that can be read by ffmpeg? Many (many many!) thanks John $ ffmpeg -f h264 -i test.h264 -vcodec copy test.mp4 ffmpeg version 3.1.4 Copyright (c) 2000-2016 the FFmpeg developers built with Apple LLVM version 8.0.0 (clang-800.0.38) configuration: --prefix=/usr/local/Cellar/ffmpeg/3.1.4 --enable-shared --enable-pthreads --enable-gpl --enable-version3 --enable-hardcoded-tables --enable-avresample --cc=clang --host-cflags= --host-ldflags= --enable-opencl --enable-libx264 --enable-libmp3lame --enable-libxvid --disable-lzma --enable-vda libavutil 55. 28.100 / 55. 28.100 libavcodec 57. 48.101 / 57. 48.101 libavformat 57. 41.100 / 57. 41.100 libavdevice 57. 0.101 / 57. 0.101 libavfilter 6. 47.100 / 6. 47.100 libavresample 3. 0. 0 / 3. 0. 0 libswscale 4. 1.100 / 4. 1.100 libswresample 2. 1.100 / 2. 1.100 libpostproc 54. 0.100 / 54. 0.100 [h264 @ 0x7fb4fa008600] missing picture in access unit with size 1055 [h264 @ 0x7fb4fa008600] data partitioning is not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented. [h264 @ 0x7fb4fa008600] If you want to help, upload a sample of this file to <a href="ftp://upload.ffmpeg.org/incoming/">ftp://upload.ffmpeg.org/incoming/</a> and contact the ffmpeg-devel mailing list. (<a href="mailto:ffmpeg-devel@ffmpeg.org">ffmpeg-devel@ffmpeg.org</a>) [h264 @ 0x7fb4fa008600] no frame! [h264 @ 0x7fb4fa008600] log2_max_frame_num_minus4 out of range (0-12): 50 [h264 @ 0x7fb4fa008600] missing picture in access unit with size 2030 [h264 @ 0x7fb4fa008600] Invalid NAL unit 2, skipping. [h264 @ 0x7fb4fa008600] data partitioning is not implemented. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that your file has a feature which has not been implemented. [h264 @ 0x7fb4fa008600] If you want to help, upload a sample of this file to <a href="ftp://upload.ffmpeg.org/incoming/">ftp://upload.ffmpeg.org/incoming/</a> and contact the ffmpeg-devel mailing list. (<a href="mailto:ffmpeg-devel@ffmpeg.org">ffmpeg-devel@ffmpeg.org</a>) [h264 @ 0x7fb4fa008600] no frame! [h264 @ 0x7fb4fa008600] missing picture in access unit with size 63108 [h264 @ 0x7fb4fa008600] Invalid NAL unit 2, skipping. Last message repeated 1 times [h264 @ 0x7fb4fa008600] Invalid NAL unit 29, skipping. [h264 @ 0x7fb4fa008600] no frame! [h264 @ 0x7fb4fa008600] sps_id 24 out of range [h264 @ 0x7fb4fa008600] non-existing PPS 0 referenced [h264 @ 0x7fb4fa008600] Invalid NAL unit 16, skipping. Last message repeated 2 times [h264 @ 0x7fb4fa008600] No start code is found. [h264 @ 0x7fb4fa008600] Error splitting the input into NAL units. [h264 @ 0x7fb4f8800000] decoding for stream 0 failed [h264 @ 0x7fb4f8800000] Could not find codec parameters for stream 0 (Video: h264, none): unspecified size Consider increasing the value for the 'analyzeduration' and 'probesize' options Input #0, h264, from 'test.h264': Duration: N/A, bitrate: N/A Stream #0:0: Video: h264, none, 37.50 fps, 25 tbr, 1200k tbn, 50 tbc File 'test.mp4' already exists. Overwrite ? [y/N] y [mp4 @ 0x7fb4f8800600] Using AVStream.codec to pass codec parameters to muxers is deprecated, use AVStream.codecpar instead. [mp4 @ 0x7fb4f8800600] dimensions not set Output #0, mp4, to 'test.mp4': Stream #0:0: Video: h264, none, q=2-31, 37.50 fps, 25 tbr, 1200k tbn, 1200k tbc Stream mapping: Stream #0:0 -> #0:0 (copy) Could not write header for output file #0 (incorrect codec parameters ?): Invalid argument <o:p> </o:p> </div> <hr> This message is for the designated recipient only and may contain privileged, proprietary, or otherwise confidential information. 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